A device in which mass cultures are grown, reactions take place, and product develops is a(n) ________.

A. sparger
B. activator
C. incubator
D. fermentor


Answer: D

Biology & Microbiology

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A mutation in the B genes of Arabidopsis would result in the incorrect formation of what structure?

A. Apical meristem B. Flowers C. Stems D. Roots

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In some plants, companion cells become modified into phloem cells that facilitate the short-distance transport of

various organic solutes from the symplast into the apoplast.

a. True b. False

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A proto-oncogene that gains function due to amplification, translocation to a more transcriptionally active area of the genome, or a mutation that causes either an increase in function or the suppression of down-regulation, is

A) a pseudo-oncogene. B) recessive. C) dominant. D) an oncogene. E) C and D only

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The uncondensed length of human DNA found in chromosomes is _______, whereas a typical cell is 10 µm in length.

a. 5 µm b. 2 µm c. 2 meters d. 20 meters e. 2.54 inches

Biology & Microbiology